Hey Kid: Vocabulary
Increase your vocabulary. Study hard, learn new words and use them in conversation every chance you get. It's very important to expand your vocabulary throughout your entire life. It is the single most important thing you can do to increase your intelligence. Steel is really good at vocabulary. He realized very early how beneficial it would be to his studies. I remember when he started using words that I couldn't define. When I would proofread his homework, I'd quiz him on the definitions and he always knew the right answers... (Even when I had to look them up in a dictionary.)
Don't be afraid to broaden your horizons... even if it is simply with language.